Sash-fastener.



UNI E sTAT s PATENT on rion. A

CARLETONIK'.I HOLMES, oFforncAeo, ILLINOIS.

SASH-FASTENER.

To ail whom it map concern:

Be it known that I, OARLEToN HoLMEs,

a citizen of the United States of "America, and a resident of Chicago,in the county of Cool; and State of Illinois, have invented certain newand usefulImprovements in Sash-Fasteners, of which the following is aspecification.

- ing raised above a certain height.

This invention relates'to sash-fasteners, and has partlcular referenceto devices adapted for temporary attachment to a windowframe s g bothof'the sashes in an p n POSltlOIL,

The main objects of thisinvention are to provide a sash-fastener of,this class which may be carried about in the pocket and which .may bereadily attached to a window of a room so as to lock eachsash of thesame.

either in a closed or partly-open position; to provide a device of thisclass which may be applied to a window-frame without injury to the sameand whichwhile being simple to operate from within the room :cannot bedislodged or disconnected by one outside of the room. v

I accomplish these objects by the device shown in the accompanyingdrawings, in

Figure 1 is a vertical-section of one side of a window frame and sashpartly broken away, showing in position thereon a sash-fastenerconstructed according to my invention, the

casmgof the fastener being 7 artly in section to disclose the interiormec anism. Fig. 2

is a top view of the fastener, the adjacent parts of the window frameand sashbeing shown in section. the side of the fastener which is towardthe frame in Fig. 1.

In the drawings the window-frame is indicated by the reference-numeral4. This frame is of the usual type and is provided The main frameworkof'the sash-fastener Specification of Letters Patent. Application filedApril 14, 1905. Serial No. 255.595.

Fig. 3 is an elevation of l-atented July 31, 1906.

consists of a member 12, which is preferably in the form of a hollowcasing inclosing the working parts.- The member 12 is provided with aflange 18, which extends into the groove 5 and has a serrated face 14for engaging the adjacent face of the side stop 10. A cam 15 ispivotally mounted upon the member 12 on thesame face with the flange 13and is adapted to engage the adjacent face of the middle stop 9 andsecurely clamp the member 12 in a fixed position in the groove 5.

The cam 15 has an arm 16, which extends beyond the end of the member 12to a position from whichsaid cam may be conveniently operated. A stop 17is also formed on the member 12 to limit the movementof the vcam 15. Apair. of levers 18 are pivotally connected at: 19 within the casing 12.These levers are oppositely formed and 'a'reeach provided at theircorresponding ends with cam-faces 20, preferablyfaced-with rubber orsome material which will firmly grip the face ofthe sash 8withoutmarring the same.

These cam-surfaces are so formed that when the levers 18. are drawntoward each other said cams force the sash firmly against the side stop11 and clamp it against shifting, the upper cam 20 preventing the sashfrom being lowered and the lower cam 20 preventing said sash from beinglifted, as will appear from Fig. 1 in the drawings. A stop 21'is locatedbetween the levers 18 in suitable position to prevent either of suchlevers from moving beyond the position in which the highest point of thecam 20 would be in contact with the sash. The levers 18' are extendedthrough the casing at the opposite side of the pivots .19 to form ears22, which may be pinched toward each other by the operator to releasethe cams 20from eng agement with the sash 8. The levers 18 are normallyurged toward each other by springs 23.

The operation of the device shown is as follows: When the operatordesires to prevent the window from being opened from the outside and atthe same time permit the window to be partly open forthe purpose ofventila-- tion, he places the fastener in the desired position above thelower sash, as indicated in Fig. l, and forces the cam 15 outwardly, so7 as tocause the member 12 to be rigidly secured in the groove 5. Thelower end 24 of said member acts as a stop for limiting the raising ofthe lower sash 7. The serrated-face I 14 of the flange 13 causes thefastener to firmly grip the stop and prevents the possibility of thedevice bein jarred loose. The operator then pinches t e ears 22 towardeach other, and while the cams 20 are thus Withdrawn from engagementwith the upper sash 8 said sash may be shifted so as to be open to thedesired extent. The springs 23 cause the cams 20 to grip the sash 8 assoon as the ears 22 are released. An attempt to raise the lower sash tocause the fastener to slip merely brings the cam into firmer contactwith the stop 9 and adds to the security of the device. Similarly thelifting of the upper sash tends to cause the lower cam to grip moresecurely, and lowering of the upper sash has a like effect upon theupper cam.

It will be seen that numerous details of the construction shown may bealtered Without departing from the spirit of my invention.

' What I claim as my invention, and desire to secure by Letters Patent,is-

1. A sash-fastener for Windows of the class described, comprising amember having relatively movable parts adapted to have frictionalengagement with opposite sides of one of the sash-grooves of thewindow-frame for securing said member in a fixed position, and a cammounted on said member and adapted to bear on the adjacent face of thesash seated in the other groove for securing said sash against movement.

2. A sash-fastener for windows of the class described, comprising amember having relatively movable parts adapted to have frictionalengagement with opposite sides of one of the sash-grooves of thewindow-frame for securing said member in a fixed position, and a pair ofoppositely-formed cams mounted on said member and adapted to bear on theadjacent face of the sash seated in the other groove, for securing saidsash against movement.

3. A sash-fastener for windows of the class described, comprising amember having a serrated edge, a cam mounted on said member near saidedge and adapted to coact therewith for engaging opposite sides of onesashgroove and securing the member in a fixed position in such groove,and means on said member for engaging an adjacent sash and securing thesame against movement.

4. A sash-fastener for windows of the class described, comprising aplate having on one face a shoulder and a cam adapted to cooperate witheach other for securing said plate to a window-frame through frictionalcontact with opposite sides of the sash-groove, and a pair ofoppositely-formed cams pivotally mounted 011 the other face of saidplate and adapted to bear on the adjacent face of a sash in the othersash-groove, for securing said sash against movement.

Signed at Chicago this 7th day of April,

OARLETON K. HOLMES. Witnesses:

EUGENE A. RUMMLER, GLEN O. STEPHENS.

